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| author | Ard Biesheuvel | 2014-09-12 22:17:23 +0200 |
|---|---|---|
| committer | Paolo Bonzini | 2014-09-14 16:25:14 +0200 |
| commit | 0b70068e47e8f0c813a902dc3d6def601fd15acb (patch) | |
| tree | df0d682a73cad221961e96ee7a73f9c9d83bea66 /mm/ksm.c | |
| parent | powerpc/kvm/cma: Fix panic introduces by signed shift operation (diff) | |
| download | kernel-qcow2-linux-0b70068e47e8f0c813a902dc3d6def601fd15acb.tar.gz kernel-qcow2-linux-0b70068e47e8f0c813a902dc3d6def601fd15acb.tar.xz kernel-qcow2-linux-0b70068e47e8f0c813a902dc3d6def601fd15acb.zip | |
mm: export symbol dependencies of is_zero_pfn()
In order to make the static inline function is_zero_pfn() callable by
modules, export its symbol dependencies 'zero_pfn' and (for s390 and
mips) 'zero_page_mask'.
We need this for KVM, as CONFIG_KVM is a tristate for all supported
architectures except ARM and arm64, and testing a pfn whether it refers
to the zero page is required to correctly distinguish the zero page
from other special RAM ranges that may also have the PG_reserved bit
set, but need to be treated as MMIO memory.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'mm/ksm.c')
0 files changed, 0 insertions, 0 deletions